Biocontrol of Pea Root Rot Incited by Fusarium Solani F. Sp. Pisi

Abstract

Pea (Pisum sativum L.) root rot caused by Fusarium solani f.sp. pisi causes significant crop losses in northern India. The antagonistic potentials of four microbial inoculants (Trichoderma harzianum, Trichoderma viride, Pseudomonas fluorescens and Bacillus subtilis) were evaluated in a lab situation and pot conditions. Among the five treatments, Including the control. Trichoderma harzianum had the highest inhibition percentage (81.63%) followed by T. viride found 77.46 per cent growth inhibition in dual culture. In pot condition maximum pre-emergence disease reduction of (62.99%) was obtained from T. harzianum followed by T. viride (60.30%) and maximum post-emergence disease reduction of (71.41%) was obtained from T. harzianum followed by T. viride (65.69 %). Trichoderma harzinaum was shown to have a higher rate of germination, root and shoot length as compared to untreated control in earthen pots. This result shows that these four biocontrol agent are very effective.